There's a couple of backup tools for your personal notes and stuff

Use https://nostrsync.live for free or https://cellar.nostr.wine/ for sats

Hey, I just sent you a tip of 20 Nostracoin.

Nostracoin can be used to record your nostr events in the blockchain.

You might want to do that because

1. It is censorship resistant

2. Timestamps your note

3. Never drops your note

You can check your balance or view Nostr at https://nostraco.in

Your post is being shared.

Added to the https://nostraco.in/hot feed

Local backups to your fav cloud provider (iCloud, GDrive) as an app / widget etc. for personal needs?

Archive.org type of structure for the overall relay content?